Apparatus for removing glass.



T; SPILLANE & T. BR'INNING. APPARATUS FOR REMOVING GLASS. APPLICATION FILED JUNE H. 1914.

1.,156,379. Patented Oct. 12, 1915 WITNESSES INVENTOH b W y W W ATTORNEY sa'r EBIT nip.

THOMAS SPILLAN E, OF NEW BETHLEHEM, PENNSYLVANIA, AND THOMAS BRINNING, OF MOUNT VERNON, OHIO.

APPARATUS FOR REMOVING GLASS.

Specification of Letters Patent.

Application filed June 11, 1914. Serial No. 844,400. f

the manufacture of window glass. After a cylinder has been drawn, either from a pot or a drawing ring in a tank, and has been out off, a residue of cold glass is left in the pot or ring, tending to interfere with sub sequent drawings. It is customary to skim this old glass out by means of a hand tool, and it is the purpose of our invention to provide an improved apparatus for accomplishing this result and for getting rid of all the cold glass in the ring or pot, so that in the case of a pot it need not be inverted to dump the glass, and in the case of a drawing ring in a tank another draw can be taken without waiting a relatively long period for the glass in the ring to reheat. One form of apparatus for carrying out the invention is illustrated in the accompanying drawing, wherein Figure 1 is a side elevation of the apparatus, partially in section, and showing such apparatus in operative position with respect to the drawing ring from which the old glass is to be removed, Fig. 2 is a plan view of the mechanism for driving the main shaft, and Fig. 3 is a section on the line IIIHI of Fig. 1.

In the drawing, 1 is a wheeled truck which supports the apparatus; 2 is a tank containing a body of --molten glass, and 3- is a drawing ring from which a glass cylinder has been drawn and from which it is desired to remove the cold glass so as to prepare the ring for a new drawing operation.

The apparatus for taking the glass from the interior of the ring comprises a fiat plate 4 arranged spirally upon the shaft 5, and a casing 6 which surrounds the spiral 4. The casing 6 is provided with an upper sleeve portion 7 carrying at its upper end a hear- I ing block 8, and the shaft 5 is provided with a bearing block-9 held against movement longitudinally of the shaft so that the weight of the shaft 5 is supported by the sleeve 7 and any upward movement of the sleeve is transmitted to the shaft.

The sleeve 7 which carries the casing 6 is mounted for vertical sliding movement through the part 10 of the framework carried by the truck 1, and is provided on one side with a rack 11 (Fig. 3). This rack 11 is engaged by a pinion 12 mounted on the shaft 13 and operated from the electric motor l. It will thus be seen that means are provided for moving the casing 6 vertically and that this movement necessarily causes the shaft 5 and the spiral 4 to move vertically with the casing.

The shaft 5 is guided at its upper end in a bearing 15 carried bythe upper portion 16 of the framework, and above this bearing is a worm wheel 17 for rotating the shaft 5 so that the shaft may move vertically therethrough, the worm wheel being operated Patented one. 12, 1915.

by the worm 18 carried by the shaft 19 and operated by the electric motor 20.

The truck 1 is provided with a turn-table mechanism comprising a pair of opposmg bearing plates 21 and 22 and a vertical shaft 23, so that after the casing 6 and spiral 4 have been moved upward above the tank the entire apparatus can be rotated laterally around the shaft 23 as an axis, the motors 14 and 20 serving to counterbalance the weight of the casing, spiral and operating parts.

In operating the apparatus the truck is brought to the position illustrated in Fig. 1 and the motor 14 is operated to lower casing (3 and spiral 4 so that the lower edges thereof are just below the surface of the glass in the ring Motor 20 is then oper ated to rotate the shaft 5 which rotation of the shaft 5 causes the surface glass in the ring 3 to rise up on the surface of the spiral 4. The motor 14 is then operated to raise the casing 6 and spiral 4, the rotation of the latter being continued to prevent the glass from flowing back into the tank. Af ter the casing and spiral have been. raised the apparatus is swung laterally around the shaft 23 as an axis and the rotation of the shaft 5 is stopped to permit the removal of the glass from the spiral. The semidiuid glass can be scraped from the surface of the spiral. although in some cases the-glass will be sniiicientlyiluid to run off the surface of the spiral with only a slight amount of assistance from a scraping tool. As heretofore indicated the device may be used for The "cold glass is removed cleanly from the receptacle, and no residue is left as in the case where hand sltimming is attempted and wherein the Workman is greatly hampered by the heat in carrying out the skimming operation. Other advantages incident to the process and apparatus skimming operation .Will be readily apparent to those skilled in the art.

- What We claim is:

1. A device for removing glass from a pot or drawing ring, comprising a vertical Copies of this patent may be obtained for spiral, a cylindrical casing surrounding the spiral, means for moving the spiral and cas-' spiralhaving its lower end formed into an inclined skimming plate, a cylindrical cas ing surrounding the spiral, means for mov-'- ing the spiral vertically and laterally, and means for rotating the spiral.

V In testimony whereof .we have hereunto signed our names in the presence of the subscribed witnesses.

' THOMAS SPILLANE. Witnesses DANIEL-M. Gnisr, Bass SMITH.

THOMAS BRINNING.

\Vitnesses:

J. L. BRINNING, C. L. SMITH.

five cents each, by addressing the Commissioner of Patents Washington, D. C. i 

